I want a magic Soccer Stretcher

[KFC]

If any one touches me, or if a fly lands on my arm, I would love to have a Magic Soccer Stretcher. Gravely wounded, I would lay down on the super fabric and spring up in 30 seconds completely cured. Then the refs would give me a red card.

[Kellanved]

1. Actually that's why they were introduced

Players used to be treated on the field, causing endless delays. The stretcher was introduced to penalize showmanship.
More importantly, the players usually can't how hard they were hit - not to mention that soccer is a very painful sport to play; many can't do it without painkillers.
Anyway, there are reports about players who continued playing literally with broken necks and similar injuries; professionals need to assess possible injuries.